Axial fan



FIG. 1 is a top, perspective view of an axial fan showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken line showing of structural elements in the figures is included for the purpose of illustrating portions of the axial fan that form no part of the claimed design. 

The ornamental design for an axial fan, as shown and described. 